An obtaining unit of a biological information obtaining apparatus obtains biological information for authentication, and an extracting unit extracts first feature information from biological information for authentication. A generating unit of a biological information collating apparatus generates encrypted position correction information, and encrypted position correction information is transmitted to the biological information obtaining apparatus. A correcting unit decrypts encrypted position correction information to obtain position correction information, and by correcting first feature information, performs alignment between first feature information and second feature information extracted from biological information for registration. A transforming unit transforms corrected first feature information, and transmits transformed first feature information to the biological information collating apparatus. A collating unit collates transformed first feature information and transformed second feature information stored in a storing unit, and transmits a collation result to biological information obtaining apparatus.